Thin-wall tank welding supporting device

Abstract

The utility model discloses a thin-wall tank welding supporting device which comprises a bottom plate. The bottoms of the two moving frames are slidably arranged on the bottom plate along the same straight line, an opening is formed in the middle of each moving frame, a rotating ring is rotatably arranged in each opening, and a plurality of supporting mechanisms are arranged on the inner wall of each rotating ring at intervals; the supporting mechanism comprises a threaded cylinder, a threaded rod, a fixing rod and two supporting wheels, and one end of the threaded rod is rotationally arranged on the inner wall of the rotating ring. The multiple threaded barrels move synchronously through the multiple threaded rods, so that the multiple supporting wheels get close to the middle of the rotating ring, a tank body in the rotating ring is clamped in multiple directions, the roundness of the tank body is guaranteed, meanwhile, the fixed tank body can be rotated through rotation of the rotating ring, and therefore the tank body can be fixed conveniently. And the tank body can be driven to transversely move through the supporting wheels, so that the position of the tank body is changed, and parts at all parts on the tank body can be conveniently welded.

Description

Technical Field

[0001] The utility model relates to the technical field of welding support devices, in particular to a welding support device for thin-walled tank bodies. Background Art

[0002] A storage tank is a steel sealed container used for storing liquids or gases, and is widely used in industries such as petroleum, chemical industry, grain and oil, food, fire protection, transportation, metallurgy, and national defense. When manufacturing the storage tank body, it is necessary to weld the tank body and the end cover into one body, and various components such as brackets and inlet and outlet pipes are also welded outside the tank body.

[0003] When welding a thin-walled tank body, due to its thin wall thickness, it is impossible to ensure the roundness of the thin-walled tank body during placement. Especially when welding the circumferential seam of the thin-walled tank body, if the roundness cannot be ensured, the welding quality of the circumferential seam of the thin-walled tank body will be poor, and at the same time, the welding of the external components is also prone to displacement, resulting in overall deformation of the tank body after welding and affecting the welding quality of the tank body. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the roundness of a thin-walled tank body cannot be ensured during welding in the prior art, resulting in poor welding quality, and to propose a welding support device for a thin-walled tank body.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A welding support device for a thin-walled tank body, comprising:

[0007] A bottom plate;

[0008] Two moving frames, the bottoms of the two moving frames are slidably arranged on the bottom plate along the same straight line, an opening is provided in the middle of each moving frame, a rotating ring is rotatably arranged inside the opening, and a plurality of support mechanisms are arranged at intervals on the inner wall of each rotating ring;

[0009] The support mechanism includes a threaded cylinder, a threaded rod, a fixed rod, and two support wheels. One end of the threaded rod is rotatably arranged on the inner wall of the rotating ring, and the other end is threadedly connected to one end of the threaded cylinder. The other end of the threaded cylinder is fixedly connected to the fixed rod. The two support wheels are respectively arranged at both ends of the fixed rod. An expansion rod is arranged between the fixed rod and the rotating ring; a toothed ring is rotatably arranged inside the rotating ring. One end of each threaded rod is provided with a gear, and each gear meshes with the toothed ring. The rotation of the toothed ring drives the rotation of each gear, drives the rotation of each threaded rod, and drives each threaded cylinder to move along its axis direction, so that each support wheel approaches or moves away from the center of the rotating ring.

[0010] Further, the axes of the two rotating rings coincide, and the support mechanisms on each rotating ring are arranged at equal intervals.

[0011] Further, the telescopic rod includes a moving rod and a moving cylinder. One end of the moving rod is fixedly connected to the fixed rod, and the other end slides inside the moving cylinder. One end of the moving cylinder is fixedly connected to the inner wall of the rotating ring.

[0012] Further, the supporting wheels are hub motors.

[0013] Further, a sliding rod is fixedly connected to the bottom plate. Slide holes are formed on one side of the two moving frames, and the sliding rod is slidably connected to the moving frames at the slide holes.

[0014] Further, threaded columns are arranged on the bottom plate. The thread rotation directions at both ends of the threaded columns are opposite. Threaded holes are formed on one side of the two moving frames, and the two moving frames are respectively threadedly connected to the two ends of the threaded columns at the two threaded holes. A driving motor is arranged on the bottom plate, and the driving motor is connected to the threaded column to drive the threaded column to rotate.

[0015] Further, a fixed seat is arranged in the middle of the top end of the bottom plate. A hydraulic rod is arranged above the fixed seat. The upper end of the hydraulic rod is fixedly connected to a bearing plate, and the bearing plate is used to support the tank body.

[0016] Further, an arc-shaped opening is formed at the top of the bearing plate. A rubber pad is arranged on the inner wall of the arc-shaped opening, and the arc-shaped opening is used to support the tank body.

[0017] Further, a first servo drive motor is arranged on the inner wall of the rotating ring. A first transmission gear is arranged on the output shaft of the first servo drive motor, and the first transmission gear meshes with the toothed ring.

[0018] Further, a second servo drive motor is arranged on one side of the moving frame. A toothed groove is arranged on the inner wall of the rotating ring. A second transmission gear is arranged on the output shaft of the second servo drive motor, and the second transmission gear meshes with the toothed groove.

[0019] The beneficial effects of the present utility model are as follows:

[0020] In the thin-walled tank body welding support device of the present utility model, through the synchronous rotation of a plurality of threaded rods, a plurality of threaded cylinders move synchronously, so that a plurality of supporting wheels approach the middle of the rotating ring, clamping the tank body inside the rotating ring in multiple directions, ensuring the roundness of the tank body. At the same time, the fixed tank body can be rotated by the rotation of the rotating ring, so as to facilitate the circular welding of the tank body. And the tank body can be driven to move horizontally by the supporting wheels, so as to change the position of the tank body, facilitating the welding of various parts on the tank body. Description of the Drawings

[0021] Figure 1 is a schematic three-dimensional structure diagram of a thin-walled tank body welding support device proposed by the present utility model;

[0022] Figure 2Schematic cross-sectional view of the side of the moving frame of a welding support device for a thin-walled tank proposed by the present utility model;

[0023] Figure 3 Schematic cross-sectional view of the moving frame of a welding support device for a thin-walled tank proposed by the present utility model.

[0024] In the figure: 1 base, 2 moving frame, 3 sliding rod, 4 threaded column, 5 fixed seat, 6 hydraulic rod, 7 bearing plate, 8 tank body, 9 rotating ring, 10 telescopic rod, 1101 threaded cylinder, 1102 threaded rod, 12 fixed rod, 13 support wheel, 14 gear, 15 toothed ring. Detailed implementation manners

[0025] The technical solutions of this patent will be further described in detail below in combination with the specific implementation manners.

[0026] The embodiments of this patent are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0027] In the description of this patent, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0028] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

[0029] Refer to Figures 1-3 , a welding support device for a thin-walled tank, which is applied to the welding process of a thin-walled tank. In order to support the thin-walled tank, ensure its roundness, and facilitate circumferential welding;

[0030] The thin-walled tank welding support device includes a bottom plate 1. Two moving frames 2 are slidably arranged on the upper surface of the bottom plate 1 along the same straight line. A sliding rod 3 is fixedly connected to the bottom plate 1. A sliding hole is formed in one side of each of the two moving frames 2. The sliding rod 3 is slidably connected to the moving frame 2 at the sliding hole so that the two moving frames 2 slide horizontally along the sliding rod 3. A threaded column 4 is arranged on the bottom plate 1. The thread rotation directions at both ends of the threaded column 4 are opposite. Threaded holes are formed in one side of the two moving frames 2. The two moving frames 2 are respectively threadedly connected to the two ends of the threaded column 4 at the two threaded holes. A driving motor is arranged on the bottom plate 1. The driving motor is connected to the threaded column 4 to drive the threaded column 4 to rotate, thereby driving the two moving frames 2 to slide horizontally and adjusting the distance between the two moving frames 2, facilitating the two ends of the tank body 8 to respectively penetrate into the two rotating rings 9, so as to support and fix the two ends of the tank body 8 through the two moving frames 2.

[0031] Openings are formed in the middle of the two moving frames 2. Rotating rings 9 are rotatably arranged inside the openings. The center positions of the two rotating rings 9 are located on the same horizontal straight line, facilitating the two ends of the tank body 8 to respectively penetrate into the two rotating rings 9, so as to horizontally support the tank body 8. A plurality of support mechanisms are arranged at equal intervals on the inner wall of each rotating ring 9. The support mechanism includes a threaded cylinder 1101, a threaded rod 1102, a fixed rod 12 and two support wheels 13.

[0032] One end of the threaded rod 1102 is rotatably arranged on the inner wall of the rotating ring 9, and the other end is threadedly connected to one end of the threaded cylinder 1101. The other end of the threaded cylinder 1101 is fixedly connected to the fixed rod 12. The two support wheels 13 are respectively arranged at both ends of the fixed rod 12. The two support wheels 13 are hub motors. A toothed ring 15 is rotatably arranged inside the rotating ring 9. A gear 14 is arranged at one end of each threaded rod 1102. Each gear 14 meshes with the toothed ring 15. A first servo drive motor (not shown in the figure) is arranged on the inner wall of the rotating ring 9. A first transmission gear is arranged on the output shaft of the first servo drive motor. The first transmission gear meshes with the toothed ring 15. A telescopic rod 10 is arranged between the fixed rod 12 and the rotating ring 9. The telescopic rod 10 includes a moving rod and a moving cylinder. One end of the moving rod is fixedly connected to the fixed rod 12, and the other end slides inside the moving cylinder. One end of the moving cylinder is fixedly connected to the inner wall of the rotating ring 9. The telescopic rod 10 enables the fixed rod 12 to move linearly, playing a guiding role. The first servo drive motor drives the toothed ring 15 to rotate inside the rotating ring 9 through the first transmission gear. The rotating toothed ring 15 drives each gear 14 to rotate, driving each threaded rod 1102 to rotate, so as to drive each threaded cylinder 1101 to move along its axis direction, making each support wheel 13 approach or move away from the center of the rotating ring 9, thereby clamping the tank body 8 in the middle of the rotating ring 9 in multiple directions and ensuring its roundness.

[0033] On one side of the moving frame 2, there is a second servo drive motor (not shown in the figure). The inner wall of the rotating ring 9 is provided with a toothed groove. The output shaft of the second servo drive motor is provided with a second transmission gear, and the second transmission gear meshes with the toothed groove. The second servo drive motor drives the rotating ring 9 to rotate inside the opening of the moving frame 2 through the meshing of the second transmission gear and the toothed groove, so that multiple support mechanisms rotate with the rotating ring 9, thereby rotating the tank body 8 clamped between the support mechanisms, facilitating the circumferential welding of the tank body 8.

[0034] In the middle of the top end of the bottom plate 1, there is a fixed seat 5. The fixed seat 5 is located between the two moving frames 2. Above the fixed seat 5, there is a hydraulic rod 6. The hydraulic rod 6 is driven by a hydraulic system, which belongs to the prior art, and the working mode of the hydraulic rod 6 will not be described in detail here. The upper end of the hydraulic rod 6 is fixedly connected with a bearing plate 7. The top of the bearing plate 7 is provided with an arc-shaped opening, and the inner wall of the arc-shaped opening is provided with a rubber pad. The tank body 8 is located inside the arc-shaped opening. The bearing plate 7 is lifted by the hydraulic rod 6, thereby changing the height position of the tank body 8 on the bearing plate 7, facilitating the rotating ring 9 to pass through both ends of the tank body 8 after the two moving frames 2 move.

[0035] The working principle of this thin-walled tank welding support device: First, the tank body 8 is placed at the arc-shaped opening of the bearing plate 7 through a lifting device. Subsequently, the hydraulic rod 6 is driven to move through the hydraulic system, thereby pushing the bearing plate 7 to lift, changing the height position of the tank body 8 on the bearing plate 7, so that the center line of the tank body 8 and the center line of the rotating ring 9 are on the same horizontal plane. Subsequently, the driving motor drives the threaded column 4 to rotate, thereby driving the two moving frames 2 to approach each other along the sliding rod 3, adjusting the distance between the two moving frames 2, so that both ends of the tank body 8 respectively penetrate into the two rotating rings 9. Subsequently, the first servo drive motor drives the toothed ring 15 to rotate inside the rotating ring 9 through the first transmission gear. The rotating toothed ring 15 drives each gear 14 to rotate, driving each threaded rod 1102 to rotate. Under the guiding action of the telescopic rod 10, each threaded cylinder 1101 is driven to move along its axis, so that the fixed rod 12 drives each support wheel 13 to approach the center position of the rotating ring 9, thereby clamping the tank body 8 in the middle of the rotating ring 9 in multiple directions. The thin-walled tank body 8 is subjected to clamping forces in multiple directions, thereby ensuring its roundness and facilitating welding;

[0036] During the welding of the tank body 8, the second servo drive motor drives the rotating ring 9 to rotate inside the opening of the moving frame 2 through the meshing of the second transmission gear and the toothed groove, so that the tank body 8 clamped by the support wheels 13 rotates with the rotating ring 9, facilitating the circumferential welding of the tank body 8. At the same time, the tank body 8 can also be driven to move horizontally by the support wheels 13 of the hub motor, thereby changing the position of the tank body 8, facilitating the welding of parts at various positions on the tank body 8.

[0037] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A thin-wall tank welding support device, characterized in that: include: Bottom plate (1); Two moving frames (2), the bottoms of the two moving frames (2) are slidably arranged on the bottom plate (1) along the same straight line, an opening is arranged in the middle of each moving frame (2), a rotating ring (9) is rotatably arranged inside the opening, and a plurality of supporting mechanisms are arranged at intervals on the inner wall of each rotating ring (9); The supporting mechanism comprises a threaded cylinder (1101), a threaded rod (1102), a fixed rod (12) and two supporting wheels (13); one end of the threaded rod (1102) is rotatably arranged on the inner wall of the rotating ring (9), and the other end is threadedly connected to one end of the threaded cylinder (1101); the other end of the threaded cylinder (1101) is fixedly connected to the fixed rod (12); the two supporting wheels (13) are respectively arranged at the two ends of the fixed rod (12); a rotating ring (9) is provided between the fixed rod (12) and the rotating ring (9); A telescopic rod (10) is arranged, a toothed ring (15) is rotatably arranged inside the rotating ring (9), a gear (14) is arranged at one end of each threaded rod (1102), each gear (14) is meshed with the toothed ring (15), the toothed ring (15) rotates to drive each gear (14) to rotate, thereby driving each threaded rod (1102) to rotate, thereby driving each threaded cylinder (1101) to move along its axial direction, so that each support wheel (13) approaches or moves away from the center of the rotating ring (9).

2. A thin-wall tank welding support device according to claim 1, characterized in that: The axes of the two rotating rings (9) coincide with each other, and the supporting mechanisms on each rotating ring (9) are arranged at equal intervals.

3. A thin-wall tank welding support device according to claim 1, characterized in that: The telescopic rod (10) comprises a moving rod and a moving cylinder, one end of the moving rod is fixedly connected to the fixed rod (12), and the other end slides inside the moving cylinder, and one end of the moving cylinder is fixedly connected to the inner wall of the rotating ring (9).

4. A thin-wall tank welding support device according to claim 1, characterized in that: The supporting wheel (13) is a hub motor.

5. A thin-wall tank welding support device according to claim 1, characterized in that: A sliding rod (3) is fixedly connected to the bottom plate (1), and a sliding hole is opened on one side of the two movable frames (2). The sliding rod (3) is slidably connected to the movable frames (2) at the sliding hole.

6. A thin-wall tank welding support device according to claim 1, characterized in that: The bottom plate (1) is provided with a threaded column (4), the two ends of which are threaded in opposite directions, a threaded hole is provided on one side of the two movable frames (2), the two movable frames (2) are respectively threadedly connected to the two ends of the threaded column (4) at the two threaded holes, and a driving motor is provided on the bottom plate (1), the driving motor is connected to the threaded column (4) to drive the threaded column (4) to rotate.

7. A thin-wall tank welding support device according to claim 1, characterized in that: A fixing seat (5) is provided at the middle of the top end of the bottom plate (1), a hydraulic rod (6) is provided above the fixing seat (5), and a bearing plate (7) is fixedly connected to the upper end of the hydraulic rod (6), and the bearing plate (7) is used to support the tank body (8).

8. A thin-wall tank welding support device according to claim 7, characterized in that: The top of the supporting plate (7) is provided with an arc-shaped opening, the inner wall of the arc-shaped opening is provided with a rubber pad, and the arc-shaped opening is used to support the tank body (8).

9. A thin-wall tank welding support device according to claim 1, characterized in that: The inner wall of the rotating ring (9) is provided with a first servo drive motor, the output shaft of the first servo drive motor is provided with a first transmission gear, and the first transmission gear is meshed with the gear ring (15).

10. A thin-wall tank welding support device according to claim 1, characterized in that: A second servo drive motor is provided on one side of the moving frame (2), a tooth groove is provided on the inner wall of the rotating ring (9), and a second transmission gear is provided on the output shaft of the second servo drive motor, and the second transmission gear is meshed with the tooth groove.

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